Since these threads go off course, the important question to be answered, Yes you absolutley need a Load at the other end of speaker cables or interconnects, if in fact "burn in " whether you believe in it or not is to work
The signal from the positive cable seeking the negative cable to flow back to ground, otherwise there is no signal traveling thru because the circuit is not complete. People don't realize the center pin of an interconnect is the only one providing the signal in the first place, and the ground ring is getting it back to activate the circuit allowing signal flow in the first place otherwise power is not going anywhere, and the cable is doing nothing until that positive tap sees the ground tap.
Speakers are doing the same thing, the positive signal flows into the speaker, goes thru the crossover, and drivers and exits thru the negative speaker tap applying the signal to your negative speaker cable or ground and the ground cable is actually flowing the opposite direction
So think about it and obviously the positive sitting on the floor next to the negative cable would obviously not transmit the signal from one to the other unless you have a magic carpet :-) Kinda interesting since speaker cables and interconnects are sometimes marked directional, but this direction is pointing to show you the signal carrying cable into the load (positive + Red whatever), cause the arrow for your negative or ground signal would be going the opposite direction. So your cable is a Series connection and to get power it must flow in and out of a load. So whether this process is necessary, well fact is cables are electrical carrying and in opposing direction components of your system, can't hurt to try and "Cook" them. But I will not debate whether it works for the better or not.
So regardless if it is a viable action or not, YOU MUST have a load to make it do anything!